one of eleven african countries united nations is investigating for sanctions violations. from the channel, we can easily spot the rusting boats. so that s the susan 1 and the susan 2 kths. our investigations show that these shrimping trawlers are part of a lucrative joint venture between the mozambiquens and the north koreans. illegal as of last august and there are more sinister links than just a few fishing boats. investigators are being traing it all. surface-to-air missile, manned portable surface-to-air missiles, military radar air defense systems, the refurbishment of tanks. it s a long list. reporter: pyongyang exporting its deadly expertise for hard cash. even to mozambique s remote interior. bolstering administrations like this, the u.n. says, training elite forces for at least two years, military sources tell us. all of it under sanctions for more than a decade.
from the channel, we can easily spot the rusting boats. so that s the susan 1 and the susan 2. our investigations show that these shrimping trawlers are part of a lucrative joint venture between the mozambicans and the north koreans. illegal as of last august and there are more sinister links than just a few fishing boats. investigators are tracking it all. surface-to-air missile, manned portable surface-to-air missiles, military radar air defense systems, the refurbishment of tanks. it s a long list. reporter: pyongyang exporting its deadly expertise for hard cash. even to mozambique s remote interior. bolstering military installations like this, the u.n. says, training elite forces for at least two years, military sources tell us. all of it under sanctions for more than a decade. so how do they keep their operations secret?